Tube frame



March 23 1926.

B. F. M GUINbSS TUBE FRAME Filed Nov. 6. 1923 Patented Mar. 23, 1925..

BENJAMIN E. MoG-UINESS, 0F GRAFTON, MASSACHUSETTS, ASSIGNOR T0 CROIVIPTON 86 KNOVILES LGOIvI WQEKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

TUBE FRAME.

Application filed. November 8, 1923. Serial" No. 673,183;

To all whom it may concern:

Be it known that I, 'BENJ'AMIN F. McGui- Nnss, a citizen of he United States, residing at Grafton, in the county of Worcester and State of Massachusetts, have invented a new and useful Tube Frame, of which the following is a specification.

This invention relates to tube frames for Arminster looms and morev particularly to the hooks by which the frames are held to thechains ordinarily employed in Axminsterloomsr j Looms of this typehave on each side thereof endless chains made up alternately of double and single links and the. tubeframes are. usually provided wtih brackets, each having a rigid tongue which passes into the double links. In order tohold the tube frame to the chain there are provided spring hooks, the lower ends of which are screwed to the'brackets and the upper end of which is hook-shaped to engage the innerone of the corresponding double links.

The usual construction is such. that the tongueisoifset from the end of the tube frame and the spring which is secured to the body of the bracket is necessarily inclined with respect to the axis of the tube frame. The result of this is that the strain :on the spring hooks. incident to supporting the tube frame acts obliquely to the length thereof,

thus producing-an inward as well as d0wn-' ward pull on the spring hooks. This inward -pul] tends to disconnect the spring hooks from the. chains with the result that the tube frames fall out of position. Also, it is found that the screws by means ofwhich the hooks are held to the brackets .avOrkloose, partly because of the strain exerted lengthwise of the tube frame. f

It is one object ofiny invention to overcome these defects by providing means whereby the strain of supporting the tube frame is transmitted from the chain to the bracket or some part thereof in a line sub stantially perpendicular to the axis of the tube frames. In carrying out the invention 1- form a hook of rigid non-flexible material and mount the same for sliding motion end;

wise of the tube frame so that all angular movement of the hook with respect tothe tube frameis obviated. 1

A further object. ofv the inventionis to,

described and pointed out in the claims.

Referring to the drawings, wherein one form of my invention is shown,

Fig. l. is a front elevation of a portion of a tube frame constructed according to my invention together with parts of the associ- I ated transfer clutch,

Fig. '2 is an end elevation of the tube frame shownxin Fig. l, and I Fig. 3 is a verticalsection on line 3-3 of Fig. 2 with the transfer clutch shown in vertical section.

In carrying outniy invention, I provide a tubeframe- 10 to which are fastened the yarn tube sections 11, one of which is inclicated on the drawing. The spool 12 is mounted on the spool bearing 13, the lower end of, which is bent to extend into the tube frame 10 as indicated at 14. The chain engaging bracket 15 has the lower end formed as at16 similarly to the lower end oftho spool bearing, while the upper end thereof has an offset tonguel? arranged to pass between the links 18 of the supporting chain.

The transfer-clutch 20 is provided with an inclined cam surface 21 and is connected to the. transfer arms (not shown) of the loom by meansof. stud 22. 'The matter thus far describedis in common use and forms no essential part of my invention. 7

Referring to Fig. 3 it will be seen that I have provided a stud 30 riveted or otherwise secured inthe adjacent vertical portions of the spool bearing and chain engaging brackets13 and 15, respectively. The chain engaging hook 31 is formed at the upper end of the sliding member 32 which is formed with wings 33 arranged to lie in recesses 34: formed on the opposite vertical edges of the bracket. The wings and. recesses lie on opposite sides of the stud 30, and the latter passes through the member 32 and has ahead 34 to limit outward motion of the hook under influence of spring 35 which. surrounds the stud and serves normally to force member 32 is bent as at 36 and extends under the adjacent ends of the tube frame and in sliding contact therewith.

The clutch 20 is formed an upstanding arm 37 in which is threaded screw 38, the innerend of which is hollow as indicated at 39 in Fig. A look nut 40 may be employed to lock the screw 38 in position. The opening 39 designed to be opposite the stud 30 when the clutch and tube frame are in operative relation.

The inner upper edges of the chain links 18 are bevelled as indicated in Fig. 1 and it therefore ncce isary to raise the tube frame slightly before disengaging the hook. lVhen the tube frame is about to be lifted from the chain, the clutch 20 is moved inwardly toward the end of the frame and the lower inner part of the cam face 21 engages the outer lower end of member 32, the result of which is to raise the tube frame and thus carry the bottom of the hook 31 above the adjacent chain link. As the clutch 20 continues to move inwardly the inner-end of the screw 38 engages the member 32 on op posite sides of the stud 30 and moves the same inwardly against the spring '35 until the hook is out of vertical alignment with any part of the chain, at which time the parts will assume the position shown in Fig. 3. The clutch is then lowered to move the yarn tubes into weaving position.

The sliding member 32 is made substair tial enough to support the tube frame and it will be seen because 'of this construction that the strain of supporting the tube frame is transmitted to the chain substantially at right angles to the length of the tube frame. The wings 33 serve to guide the hooks so that the spring 35 will becompr'esse'd easily and cramping avoided. The guiding of the hook is further effected by the bent end 36 passing under the tube frame, the use of this bent end making it possible first to raise the hook-by the cam 21 so that it may subsequently be given a parallel motion away from the chain. Also, it will be observed that when the clutch is in position to be lowered the slidingmcmber 32' will lie in opening 39 and should the tube frame be held up through some faulty action of the releasing hook, the clutch and its transfer arm will beheld up to. throw into operat on the stop motion (not shown). for arresting the loom.

Having thus described my invention, it

, will be evident that changes and modification's may be'madeby those skilled in theart isvithoiit departing from the spirit and scope of the-invention as set forth in the appended claims, and ldo not 'wi's'h to bebtherwise limited to the details herein disclosed.

i What I. claim-is:

chain engaging element rigid with respect to the member, and a chain engaging hook mounted for sliding movement with respect to the nember element, said hook being movable as a whole toward and from the said element, and all portions of said hook having substantially the same amount of motion.

2. In a tube frame for Axminster looms, a bracket carried by the end of the frame, a chain engaging hook, coacting elements on the bracket and hook to define sliding connection between said bracket and hook to give said hook a parallel motion, and means acting in substantial alignment with the coacting elements to move said hook.

3. In a tube frame for Axminster looms,

a bracket carried by the end of the frame, a chain engaging hook member associated with the bracket and supported thereon, means to move said hook member longitu dinally of the frame, and means to guide said hook member to keep said hook member substantially perpendicular to the tube frame in all positions thereof.

4. In a tube frame for Axminster looms, a bracket for supporting the tube frame having an extension substantially parallel to the. axis of thetube frame, and a .hook mounted .on said extension and slidable thereon in adirection parallel to the axis of the tube so that all portions of said book have the same amount of motion with respect to the tube frame.

5. In a tube frame for Axminster looms, a bracket secured to the tube frame, and a chain engaging hook having a portion, mounted for sliding engagement with respect to the bracket and having another portion passing under and having sliding contact with the underside of the tube frame.

6. In a tube frame forAxminster looms, a supporting bracket secured thereto, a chain engaging hook member, and means defining 'a sliding connection between said hook memher and the bracket and also between said hook member. and thetube frame.

7. In a tube frame for Axminster looms,

a supporting bracket secured thereto, a

chain engaging hook member having wings in sliding contact with the bracket to guide the liookmember and a supporting stud carried by the bracket and extending through the hook.

In J 'afor Axininster l si a bracket secured thereto ha ving a stud P 'jecting therefrom substantially parallel to the asisofthe tubev frame, a' 0k member I guided on "the stud-andineans to engage the hook mom-heron opposite sides" of the stud 'andinove said' hook on saidsttid substantially parallel to'tlr'e ax'is-Mitheitabe-ifmme.

y 9. In a tubeframe'for Axminster a supporting bracket absenteeism-situate are s a-seein ees w eon orciseagaerueabsmmense engaging hook member slidably mounted on the stud, and means to engage the hook member and move the same on the stud, said means being recessed to receive the stud when the hook member is moved to chain releasing position.

10. In atube frame for Axminster looms having a clutch provided with a cam face,

a hook member mounted for movement with respect to the tube frame having a portion in the path of the cam face of the clutch to be lifted thereby and connections between the hook member and the tube frame whereby the latter is raised when the said member is lifted. Y

11. In tube frame for Axminster looms, a bracket secured thereto, a hook member slidably mounted with respect to the bracket and having a portion extending under the tube frame, and means first to engage said portion of the hook directly to raise the latter and thereafter to move said hook member toward the-bracket.

12. At hook member for Axminster tube frames having a chain engaging bracket on each end thereof slotted to receive the hook member and provided with auxiliary guides, said hook member having a chain engaging portion at one extremity, an offset portion at the other extremity to extend under the tube frame, and guiding portions intermediate the extremities to cooperate with the auxiliary guides.

13. A hook member for tube frames for Axminster looms having a bracketon each end thereof slotted to receive the hook member and provided with auxiliary guides, said hook member having a chain engaging portion at one extremity and a portion formed adjacent the other extremity for sliding contact with the tube frame, said hook member being also provided with guides to cooperate with the auxiliary guides.

In testimony whereof I have hereunto affixed my signature.

BENJAMIN F. MGGUINESS. 

